Pei, Z., et al. “Food Intake and Overweight in School-Aged Children in Germany: Results of the GINIplus and LISAplus Studies.”10.1159/000362694__Ann Nutr Metab, vol. 64, no. 1, 2014, pp. 60–70, doi:10.1159/000362694.

Hauner, Hans, et al. “Evidence-Based Guideline of the German Nutrition Society: Carbohydrate Intake and Prevention of Nutrition-Related Diseases.”10.1159/000335326__Annals of Nutrition and Metabolism, 2012, pp. 1–58, doi:10.1159/000335326.